共查询到20条相似文献,搜索用时 62 毫秒
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2012年12月11日,中国兽医药品监察所在北京组织召开了全国重大动物疫病疫苗定点生产企业负责人会议。会议对重大动物疫病疫苗生产检验、供应及产品质量安全等情况进行了全面分析,并就贯彻落实《国家中长期动物疫病防治规划(2012-2020年)》(以下简称"规划")精神,进一步做好全国重大动物疫病疫苗质量和监管工作进行了安排部署。农业部兽医局张弘副局长、中国兽医药品监察所李向东书记、徐肖君副所长、杨劲松 相似文献
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Moore JC 《Journal of veterinary medical education》2007,34(3):243-250
Higher education is adapting to new technologies and to the evolving pedagogies that accompany change. Maintaining quality begins with identifying purpose and assessing progress. Using the Sloan Consortium's quality framework, this article provides resources for measuring quality in online environments. 相似文献
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采用二因素试验设计,以无添加剂处理作为对照,研究了甲酸以及两种乳酸菌类青贮添加剂(Sila-Max,Sila-Mix)对小黑麦和黑麦青贮营养品质和发酵品质的影响,以期为小黑麦和黑麦青贮饲料的调制奠定基础。结果表明:甲酸处理组的中(酸)性洗涤纤维含量显著低于其他处理(P<0.05),可溶性碳水化合物(WSC)含量和干物质消化率(DMD)显著高于对照组(P<0.05),青贮营养品质最优;Sila-Max和Sila-Mix处理组的DMD和乳酸含量显著高于对照组(P<0.05),pH值和NH3-N/TN显著低于对照组(P<0.05),青贮营养品质和发酵品质均优于对照组,其中Sila-Max用量最少,发酵品质最优;青贮原料间小黑麦的营养品质和发酵品质均优于黑麦,更适于调制青贮饲料。综上,小黑麦添加甲酸调制青贮饲料的营养品质最优,小黑麦添加Sila-Max处理调制青贮饲料的发酵品质最优。 相似文献
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Essentially all animal commodity organizations have established quality assurance programs designed to ensure food safety and quality. Most of these programs were originally implemented to address problems with veterinary drug residues. Many of the current programs have or plan to include food safety critical control points with specific guidelines on how to control or reduce pathogen load. The continued focus placed on food safety by today's consumer demands that American producers ensure that their commodities are wholesome, safe, and of high quality in order to remain competitive in the global marketplace. Veterinarians should recognize that it is important to encourage food animal producers to participate in quality assurance programs for their clients' economic health and for food safety and protection of public health. Commodities certified as being produced under good production practices or by producers certified as following a recognized and validated quality assurance program often bring a premium price. Also, some slaughter establishments are beginning to require producers to be certified as practicing under a recognized quality assurance program before animals are accepted for processing. This practice is being driven partially by the demands placed on slaughter establishments by the US Department of Agriculture's implementation of the Pathogen Reduction, Hazard Analysis and Critical Control Point Systems regulation. Regardless of why producer trade association quality assurance programs have come into existence, veterinarians should promote the programs as an excellent mechanism to help ensure everyone's goal of a safe, wholesome food supply. 相似文献
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Survey of the prevalence and methodology of quality assurance for B‐mode ultrasound image quality among veterinary sonographers 下载免费PDF全文
Larry P. Hoscheit Hock Gan Heng Chee Kin Lim Hsin‐Yi Weng 《Veterinary radiology & ultrasound》2018,59(3):326-332
Image quality in B‐mode ultrasound is important as it reflects the diagnostic accuracy and diagnostic information provided during clinical scanning. Quality assurance programs for B‐mode ultrasound systems/components are comprised of initial quality acceptance testing and subsequent regularly scheduled quality control testing. The importance of quality assurance programs for B‐mode ultrasound image quality using ultrasound phantoms is well documented in the human medical and medical physics literature. The purpose of this prospective, cross‐sectional, survey study was to determine the prevalence and methodology of quality acceptance testing and quality control testing of image quality for ultrasound system/components among veterinary sonographers. An online electronic survey was sent to 1497 members of veterinary imaging organizations: the American College of Veterinary Radiology, the Veterinary Ultrasound Society, and the European Association of Veterinary Diagnostic Imaging, and a total of 167 responses were received. The results showed that the percentages of veterinary sonographers performing quality acceptance testing and quality control testing are 42% (64/151; 95% confidence interval 34–52%) and 26% (40/156: 95% confidence interval 19–33%) respectively. Of the respondents who claimed to have quality acceptance testing or quality control testing of image quality in place for their ultrasound system/components, 0% have performed quality acceptance testing or quality control testing correctly (quality acceptance testing 95% confidence interval: 0–6%, quality control testing 95% confidence interval: 0–11%). Further education and guidelines are recommended for veterinary sonographers in the area of quality acceptance testing and quality control testing for B‐mode ultrasound equipment/components. 相似文献
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《畜牧与生物技术杂志(英文版)》2017,(1)
Background: Density gradient centrifugation was reported as a technique of semen preparation in assisted reproductive techniques in humans and animals. This technique was found to be efficient in improving semen quality after harmful techniques such as cryopreservation. Recently a modified technique, single layer centrifugation,was proposed as a technique providing a large amount of high quality spermatozoa, and this treatment was performed before conservation. Single layer centrifugation has been studied prevalently in stallions and in boars,but limited data were available for bulls. Occasionally bulls are known to experience a transient reduction in semen quality, thus techniques that allow improvement in semen quality could be applied in this context. The aim of this study was the evaluation of single layer and double layer centrifugation by the use of iodixanol, compared with conventional centrifugation and non-centrifuged semen, on the sperm characteristics during the cryopreservation process in bulls with normal and poor semen quality.Results: Single layer centrifugation and double layer centrifugation both significantly increased the percentage of normal spermatozoa and decreased the percentage of non-sperm cells in poor quality samples, while both were ineffective in those of normal quality. Sperm characteristics in poor quality samples increased after single layer centrifugation and double layer centrifugation, reaching values similar to those recorded in normal samples, and this trend is maintained after equilibration and after cryopreservation. On the other hand, SLC and DLC resulted in a consistent reduction in the spermatozoa recovered, and this resulted in a reduction of the absolute amount of spermatozoa cryopreserved in the normal samples, without a clear improvement in sperm characteristics in this type of sample.Conclusions: These data suggested that both SLC and DLC could be performed in practice, but their application should be limited to the cases in which the quality of the spermatozoa recovered is more important than the total amount of spermatozoa. 相似文献
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为了科学的评价不同白沙枇杷品种果实品质指标,建立高效白沙枇杷果实品质评价体系,本研究通过相关性分析法和主成分分析法对23份白沙枇杷果实的11个品质指标进行了系统分析。结果表明,不同品种的果实各个品质指标之间存在较大差异,且具有不同程度的相关性。采用主成分分析法从11个品质指标中提取出4个主成分因子。综合相关性分析和主成分分析,可溶性糖、可滴定酸、氨基酸(AA)和单果重作为白沙枇杷果实品质性状评价的核心指标。采用相关性分析和主成分分析综合评价方法为评价品质优良的白沙枇杷品种提供参考依据。 相似文献
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F J Smulders 《The Veterinary quarterly》1986,8(2):158-167
Several aspects of meat quality are briefly discussed, outlining the complex of parameters affecting meat quality as a whole. Particular attention is paid to the main sensory meat quality characteristics, which can be assessed analytically, and are known to be related to consumers' appreciation, when buying, preparing and consuming meat. After some compositional and structural characteristics of muscle have been outlined, the major physiological factors effecting the conversion of muscle into meat are discussed. Finally commonly used methods for the assessment of sensory meat quality are reviewed. 相似文献